A nurse is conducting her master's thesis research in the unit in which she works as a staff nurse. ...

A nurse is conducting her master's thesis research in the unit in which she works as a staff nurse. The focus of her thesis is burned children's pain, with versus without a child life specialist assisting the child.
 
  She is providing child life specialist presence every other day at the mid-morning dressing change. For obvious reasons, she wants to keep everything else consistent for the four contiguous days of data collection. On the second day of four, with the child life specialist present, one child demonstrates poor pain control. The nurse researcher would ordinarily advocate for more pain medication for this child, but if she does, she will not be able to compare the data with that of the previous day. This is an example of which of the following?
  a. Serendipity
  b. Subject as object
  c. Role conflict
  d. Passive resistance